Lock.



' No. 704,862. Patnted July I5, 1902 J. L. CUULTEB.

LOOK.

(Application filed Apr. 26, 1900. Renewed June 24, 1902.)

(No Model.)

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UNITED STATES PATENT OFFICE.

JAMES L. 'OOULTER, OF BOVIN A CENTER, NEW YORK.

QLOCK'.

SPECIFICATION forming part of Letters Patent No. 704,862, dated July 15,1902. Application filed April 25, 1900. Renewed June 24, 1902. flerial No. 112,992. (No model.)

To c'tZZ whom, it may concern:

Be it known that 1, JAMES L. COULTER, a citizen of the United States, and a resident of Bovina Center, in the county of Delaware and State of New York, have invented a new and Improved Look, of which the following is a full, clear, and exact,description.'

The purpose of this invention is to provide the usual cottage-latch with a lock attachment, so that the latch cannot be opened without the application of a key.

This specification is the disclosure of one form of the invention, while the claims define the actual scope thereof.

Reference is to be had to the accompanying drawings, forminga part'of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a face view "of the invention with parts broken away.. Fig. 2 is a similar.

view with the parts shown in a different position, and Fig. 3 is a vertical section of ,the'

invention.

The lockis providedlwith a casing to, which is screwed or otherwise fastened to a door, and with a latch 17, pivotally mounted in the casing and working as usual, with a keeper. 0 fastened on the door-frame. Arrangedbeneath the latch 17 is a thumb-plate d for raisin Fig. 1) this extension f is capable of entering between the latch and the screw a, which serves to hold the tumbler down and prevent the raising of the latch. This screw may alsobe employed to assist in holding the casing a in place, or, if desired, the extension f of the tumbler may be adapted to be engaged with any other stationary part of the latch. Then the tumbler is in the position shown in Fig. 1, the finger f engages in the recess 5 and the'tu inbler is held in this position by reason of the engagement of the finger withthe walls of said recess. A key insorted in the casing through the keyhole g may be made to lift the tumbler and throw it from the position shown in Fig. 1 to that shown in Fig. 2, in which the finger f is engaged with the walls of the recess 5' and the extension f is disengaged from the screw a. The thumb-plate cl may now be operated to raise the latch, as desired. The tumbler f is provided with an upward extension f which projects through an opening in the top of the casing and by which the tumbler may be manually operated.

Having thus described my invention, 1

claim as new and desire to secure by Letters Patent- 1. A look, having. a casing, a latch pivotal1y monn'tedtherein and formed with twoindentations or recesses in its upper edge adjathe latch and being capable of engaging in either one of the recesses or indentations in the latch to hold the tumbler in active or inactive position. I w

2. A look, comprising a casing, a latch pivotedat one end in said casing and formed with two indentations or recesses in its upper edge adjacent to its pivoted end, a thumb or finger plate for operating the latch, and a tumbler having a body portion resting on the top of the latch and provided withan extension at its forward'end adapted to engage between the latch and a fixed'part of thecasing to hold the latch in locked. position, an integral finger extending from the body portion of the tumbler at the opposite or rear end and having its lower end shaped to correspond with the recesses in the latch and arranged to engage either of said recesses to hold the latchinactive or inactive position, the said finger end of the tumbler being adapted to be engaged by a key to lift the tumbler at said end and move the finger from one of said recesses to the other.

3. A lock, comprising a casing, a latch pivoted at one end in said casing and having two recesses therein adjacent to its pivoted end, means for operating the latch, and a tumbler resting on the latch and having an extension at one end adapted to engage between the latch and a stationary part of the casing to hold the latch in locked position, a finger at the other end of said tumbler and adapted to engage in either of said recesses in the latch, and an upward extension on said tumbler projecting through an opening in the top of the casing.

4. A look, comprising a casing, a latch piv- JAMES L. GOULTER.

Witnesses:

HAMILTON J. HEWITT, WALTER D. MILLER. 

